EP3673180B1 - Fixing unit - Google Patents
Fixing unit Download PDFInfo
- Publication number
- EP3673180B1 EP3673180B1 EP18758853.8A EP18758853A EP3673180B1 EP 3673180 B1 EP3673180 B1 EP 3673180B1 EP 18758853 A EP18758853 A EP 18758853A EP 3673180 B1 EP3673180 B1 EP 3673180B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- designed
- fixing
- thread
- fixing unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005489 elastic deformation Effects 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 2
- 230000001066 destructive effect Effects 0.000 claims description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/02—Shape of thread; Special thread-forms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/041—Releasable devices
- F16B37/042—Releasable devices locking by rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/041—Releasable devices
- F16B37/043—Releasable devices with snap action
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
Definitions
- the invention relates to a fastening unit for providing an assembly thread designed as an internal thread on a component, in particular on a thin-walled component, according to the preamble of patent claim 1 and an assembly according to the preamble of patent claim 17.
- the material thickness is regularly not sufficient to be able to provide a resilient mounting thread directly on the component.
- the introduction of assembly threads into components can, for example, damage the coating of the respective component.
- limited accessibility of a component section can mean that direct introduction of a mounting thread is not possible at all or only possible with a great deal of effort.
- washers with a paint-friendly coating to prevent damage to the component coating prevent during the assembly process.
- a corresponding washer is, for example, from the publication EP 2 647 852 A2 known.
- the known solutions for providing an assembly winch on a component involve a high risk of component damage or require time-consuming and costly assembly processes.
- attachment units are out DE 10 2006 007244 A1 , DE 199 44 685 A1 , EP 1 281 876 A1 known, wherein the holding element comprises a plurality of connecting parts designed as latching hooks. These latching hooks are used to hold the fastening body on the first side of the component and are intended to be connected to a corresponding holding section of the fastening body. The holding section is spaced apart from the mounting thread.
- U.S. 8,297,169 B2 discloses a known attachment unit.
- the object on which the invention is based is therefore to make it possible to provide an assembly thread on a component without this leading to component damage and/or requiring time-consuming or costly assembly processes.
- the object is achieved by a fastening unit of the type mentioned at the outset, the fastening unit having the features of independent claim 1 .
- the invention makes use of the finding that an at least two-part fastening unit, which comprises a fastening body carrying the assembly thread and a holding element designed to hold the fastening body, overcomes the need to drive the fastening body into the component in the manner of a rivet nut.
- the fastening unit can thus be fastened to the component without significant material stress.
- the fastening unit provides a mounting thread on the component, which can be used to attach another component to the component on which the mounting thread has been provided.
- the provision of a mounting thread on the component thus takes place without or with a significantly lower risk of damaging a coating, such as a paint finish, on the component. Accelerated aging and an increased risk of component failure due to corrosion are thus effectively prevented.
- the fastening unit according to the invention allows one-man assembly, so that the assembly work is significantly reduced.
- the one or more connecting parts of the holding element are designed to be reversibly detachably connected to the holding section of the fastening body and preferably non-destructively and/or without tools. Due to the reversible detachability of the connection between the one or more connecting parts of the holding element and the holding section of the fastening body, the fastening unit can be detached from the component. Thus, for example, an exchange of the fastening unit is possible without the component being damaged during the exchange. In particular in the event of damage to the fastening unit, this avoids having to replace the entire component to which the fastening unit is connected.
- a fastening unit according to the invention is preferred in which the one or more connecting parts of the holding element are set up to be connected at least in a form-fitting manner to the holding section of the fastening body.
- the one or more connecting parts of the holding element are designed to be connected in a non-positive manner to the holding section of the fastening body.
- the non-positive connection can be a clamp connection, for example.
- the one or more connecting parts comprise one or a plurality of elastically deformable webs which, for holding the fastening body on the first side of the component, are designed to be connected under elastic deformation to the holding section of the fastening body spaced apart from the mounting thread.
- the one or more elastically deformable webs are preferably set up to be elastically deformed when the holding element is inserted into the fastening body by coming into contact with the fastening body.
- the form fit between the one or more elastically deformable webs and the holding section of the fastening body is preferably achieved in that the one or more elastically deformed webs each assume a form-fit position as a result of a restoring force.
- a fastening unit according to the invention is preferred in which the holding section of the fastening body has one or more latching edges and the one or more webs are each designed as latching hooks, the one or more latching edges and the one or more latching hooks for holding the fastening body on the first side of the component are adapted to be latched together.
- the fastening body and the holding element can be connected to one another in the manner of a clip connection by the one or more latching edges and the one or more webs designed as latching hooks.
- the fastening unit can either already be fully assembled or be in an intermediate state in which the fastening unit is not yet fully assembled. In the intermediate state, the fastening unit can have play, for example, which allows a relative movement of the fastening unit with respect to the component.
- the holding section of the fastening body has a fixing thread designed as an internal thread and the one or more latching edges are part of the fixing thread.
- the one or more latching edges are formed by the flanks of the thread turn of the fixing thread.
- the one or more latching hooks are designed to be latched in the thread of the fixing thread. The use of the fixing thread for latching the one or more latching hooks results in a plurality of latching positions of the holding element in the fastening body.
- a fastening unit is preferred in which the one or more webs each have a contact area which carries a section of an external thread corresponding to the fixing thread. Due to the external thread in the contact area of the one or more webs, the holding element can be screwed in further after the latching process, which is made possible by the elastic deformability of the webs, so that a contact section of the holding element comes into contact with a contact surface of the component, which is on the second Side of the component is arranged. Any play between the fastening body and the retaining element after the retaining element has been inserted into the fastening body can be eliminated by additionally screwing the retaining element into the fastening body. In this way, it can be ensured that the holding element can be inserted into the fastening body up to an end position, independently of the formation of the fixing thread, with the holding element striking the component in the end position.
- a connecting part of the retaining element is designed as a peripheral connecting thread designed as an external thread, with the retaining section of the fastening body having a fixing thread designed as an internal thread and corresponding to the connecting thread.
- the holding element is not inserted axially into the fastening body, but is screwed into the fastening body by means of a rotational movement.
- the mounting thread and the fixing thread have different diameters.
- the fixing thread preferably has a larger diameter than the mounting thread.
- the one or more connecting parts can be brought into engagement with the fixing thread without the one or more connecting parts protruding into an area in which a fastening element, such as a screw, to be screwed into the mounting thread, is to be inserted.
- a fastening unit according to the invention is preferred in which the fastening body has an anti-twist device which is designed to extend at least in sections through the recess in the component and to prevent the fastening body from twisting about a longitudinal axis of the fastening body by means of a positive fit.
- the recess of the component preferably has an inner contour with one or more corners or edges, with the anti-twist device being designed as a material projection whose shape or cross-section allows it to be inserted into the recess of the component in a torsion-proof manner.
- the recess of the component and/or the anti-twist device preferably have a rectangular or square cross section.
- a fastening unit according to the invention is advantageous in which the fastening body has a contact surface which is set up to be in contact with a contact surface of the component arranged on the first side of the component.
- the contact surface of the fastening body serves as a stop with which the fastening body can be positioned relative to the component at least in one direction.
- the holding element has a contact section which is set up to serve as a washer and/or spacer between the component and another further component to be fastened to the component using the fastening unit.
- the contact section of the holding element preferably has a circumferential annular outer surface. The two components to be fastened can be prevented from coming into contact with each other via the contact portion of the holding member. Furthermore, the distance between the components to be fastened to one another can be set precisely by the material thickness of the contact section.
- a fastening unit is preferred in which the contact section of the holding element has a first contact surface, which is set up to be in contact with a contact surface of the component arranged on the second side of the component, and/or a second contact surface, which is set up for this purpose having to be in contact with a contact surface of the further component to be fastened to the component using the fastening unit.
- the first contact surface and the second contact surface preferably run essentially parallel and/or have a matching basic shape.
- the contact section of the holding element has a cross section which projects beyond the cross section of the recess of the component in sections or on all sides.
- the contact section is round and/or disk-shaped and/or has one or more recesses.
- the number of recesses in the contact section of the holding element preferably corresponds to the number of elastically deformable webs of the holding element.
- a fastening unit according to the invention is preferred in which the fastening body and/or the holding element are each formed in one piece. Due to the one-piece design of the fastening body and/or the holding element, the fastening unit is particularly robust against external influences Influences, the one-piece nature of the fastening body and / or the holding element can also have a significant influence on the strength of the connection between the fastening body and the holding element.
- the fastening body and/or the holding element are each made partially or completely of plastic, in particular of a fiber-reinforced plastic.
- the fibers are preferably oriented in such a way that they form a woven fabric, scrim, knitted fabric or mesh.
- the fibers can also be aligned in the radial direction, in the axial direction and/or in the circumferential direction.
- the fastening body and/or the holding element can also be made partially or completely of metal or a metal alloy.
- the fastening element is set up to prevent the one or more connecting parts from detaching from the holding section of the fastening body before and/or during screwing into the mounting thread.
- the fastening element is preferably designed as a screw. The flanks of the external thread of the screw are already in contact with the one or more connecting parts of the retaining element before the screw is screwed in and/or while the screw is being screwed into the mounting thread, so that an elastic deformation, which would cause the one or more connecting parts to detach from the Holding portion of the fastener body would allow prevented by the fastener because the fastening element occupies the space necessary for the elastic deformation of the one or more connecting parts.
- the 1 shows an agricultural distribution device 200 designed as a fertilizer spreader.
- the distribution device 200 comprises a reservoir 202 for storing spreading material, namely fertilizer.
- the storage container 202 has two storage areas 204a, 204b, the first storage area 204a being connected to the metering element 206a and the second storage area 204b being connected to the metering element 206b.
- the metering elements 206a, 206b of the agricultural distribution device 200 are set up to dispense a metered amount of grit onto the centrifugal disks 208a, 208b arranged below the metering elements 206a, 206b.
- the reservoir 202 is formed in each of the reservoir areas 204a, 204b from a thin-walled, deep-drawn sheet metal.
- the metal sheets are fastened to a supporting frame that is also thin-walled. Furthermore, the metal sheets and the support frame have a coating that protects the components from corrosion.
- the 2 and the 3 show that the sheet metal is designed as a first component 102 and the support frame as a second component 104 of an assembly 100.
- the assembly has a fastening unit 10 which provides an assembly thread 36 designed as an internal thread on the first component 102 .
- the assembly 100 has a fastening element 106 designed as a screw.
- the fastening element 106 has an external thread 118 which corresponds to the mounting thread 36 .
- the first component 102 and the second component 104 are fastened to one another by means of the fastening unit 10 and the fastening element 106 .
- the 4 shows a fastening unit 10, which is used to provide a mounting thread 36 designed as an internal thread on a thin-walled component 102.
- the fastening unit 10 comprises a fastening body 12 and a holding element 14.
- the fastening body 12 carries the mounting thread 36 and is set up to be arranged on a first side 108 of the component 102 in the region of a recess 112 extending through the component 102 .
- the fastening body has a contact surface 26 and an anti-twist device 22 .
- the contact surface 26 is set up to be in contact with a contact surface 114 of the component 102 arranged on the first side 108 of the component 102 .
- the anti-rotation device 22 can be inserted into the recess 112 in the component 102 and prevents the fastening body 12 from rotating about its longitudinal axis 24 by means of a positive fit.
- the recess 112 of the component 102 has an inner contour with a plurality of corners, with the anti-rotation device 22 being designed as a material projection 28 is, the shape of which has corresponding corners 30a-30d, which allow twist-proof insertion into the recess 112 of the component 102 (see also figure 5 ).
- the recess 112 of the component 102 and the anti-twist device 22 have an essentially square cross-section.
- the holding element 14 is set up to be arranged on a second side 110 of the component 102 in the region of the recess 112 extending through the component 102 and opposite to the fastening body 12 and to hold the fastening body 12 on the first side 108 of the component 102.
- the holding element 14 also has a contact section 16 which serves as a washer and spacer between the component 102 and a further component 104 to be fastened to the component 102 using the fastening unit 10 .
- the contact section 16 of the holding element 14 has a first contact surface 18 which is set up to be in contact with a contact surface 116 of the component 102 arranged on the second side 110 of the component 102 .
- the contact section 16 of the holding element 14 has a second contact surface 20, which is set up to be in contact with a contact surface 120 of the further component 104 to be fastened to the component 102 using the fastening unit 10 (see also the Figures 11 to 13 ).
- the contact portion 16 is round and disc-shaped.
- the fastening unit 10 provides a mounting thread 36 on the component 102 which can be used to fasten a further component 104 to the component 102 on which the mounting thread 36 was provided.
- the Figures 5 to 7 show a one-piece fastening body 12 made of plastic, which carries an assembly thread 36 and is set up to be arranged on a first side 108 of a component 102 in the region of a recess 112 extending through the component 102.
- the fastening body 12 includes a holding section 44 spaced apart from the mounting thread 36.
- the holding section 44 of the fastening body 12 has a fixing thread 34 designed as an internal thread.
- the flanks of the fixing thread 34 serve as latching edges for elastically deformable webs of a holding element 14 designed as latching hooks different diameters d1, d2, the diameter d2 of the fixing thread 34 being larger than the diameter d1 of the mounting thread 36.
- the mounting thread 36 and the fixing thread 34 are introduced into a base body 32 of the fastening body 12.
- the Figures 8 to 10 show a one-piece holding element 14 made of plastic.
- the holding element 14 is designed to be arranged on a second side 110 of a component 102 in the region of a recess 112 extending through the component 102 and opposite a fastening body 12 .
- the holding element 14 is used to hold the fastening body 12 on the first side 108 of the component 102 .
- the holding element 14 comprises a total of four connecting parts 38a-38d, with two connecting parts 38a-38d being arranged opposite each other.
- the connecting parts 38a-38d are designed as elastically deformable webs, the elastically deformable webs for holding the fastening body 12 on the first side 108 of the component 102 being set up to be connected under elastic deformation to the holding section 44 of the fastening body 12 spaced apart from the mounting thread 36 to become.
- the connecting parts 38a-38d of the holding element 14, designed as elastically deformable webs can be reversibly detached and connected to the holding section 44 of the fastening body 12 in a non-destructive and tool-free manner.
- the connecting parts 38a-38d designed as elastically deformable webs are designed as latching hooks, which are set up to be latched with the fixing thread 36 of the fastening body 12 in the manner of a clip connection.
- the connecting parts 38a-38d designed as elastically deformable webs each have a contact area 42a-42d which carries a section of an external thread corresponding to the fixing thread 34. Due to the external thread in the contact area 42a-42d of the webs, the retaining element 14 can be screwed in further after the latching process, which is made possible by the elastic deformability of the webs.
- the holding element 14 has a disc-shaped contact section 16 which serves as a washer. Furthermore, the contact section 16 has a plurality of recesses 40a-40d, the number of recesses 40a-40d in the contact section 16 of the holding element 14 corresponding to the number of webs of the holding element 14.
- FIGS. 11 to 13 each show an assembly 100 with a first thin-walled component 102, a second thin-walled component 104, a fastening unit 10 and a fastening element 106.
- the fastening element 106 is designed as a screw and has a screw head 124 and an external thread 118 .
- the screw head 124 rests on the contact surface 122 of the second component 104 .
- Fastening element 106 extends through a recess 126 in second component 104 and through a recess 112 in first component 102.
- the fastening unit 10 provides on the first component 102 a mounting thread 36 designed as an internal thread, into which the external thread 118 of the fastening element 106 is screwed, so that the first component 102 and the second component 104 are fastened to one another by means of the fastening unit 10 and the fastening element 106.
- Fastening element 106 is designed to prevent loosening of connecting parts 38a-38d, designed as elastically deformable webs, from holding section 44 of fastening body 12 before and during screwing into mounting thread 36 . This is achieved in that the fastening element 106 already takes up space before and during the screwing into the mounting thread 36, which the connecting parts 38a-38d, which are designed as elastically deformable webs, would need in order to deform in such a way that the engagement in a fixing thread 34 arranged in the holding section 44 can be loosened.
- the in the Figures 11 to 13 The first components 102 and second components 104 shown each have different sheet thicknesses x1-x3, y1-y3, with the fastening units 10 used matching.
- the illustrations show that the fastening unit 10 according to the invention, due to the use of a thread, namely the fixing thread 34, for latching the connecting parts 38a-38d designed as latching hooks, allows components with different material thicknesses to be fastened to one another in a paint-friendly manner.
- the fastening body 12 is circular in its free end region.
- the outer contour of the fastening body 12 is polygonal, for example square or hexagonal.
- a corresponding socket wrench can be placed on the hexagonal outer contour of the fastening body 12 .
- the fastening unit 10 can be mounted with the fastening body 12 at locations that are not readily accessible.
- the fastening of FIG. 10 can be mounted with the fastening body 12 on a pipe wall in which correspondingly designed openings are arranged.
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Description
Die Erfindung betrifft eine Befestigungseinheit zur Bereitstellung eines als Innengewinde ausgebildeten Montagegewindes an einem Bauteil, insbesondere an einem dünnwandigen Bauteil, nach dem Oberbegriff des Patentanspruchs 1 und eine Baugruppe nach dem Oberbegriff des Patentanspruchs 17.The invention relates to a fastening unit for providing an assembly thread designed as an internal thread on a component, in particular on a thin-walled component, according to the preamble of patent claim 1 and an assembly according to the preamble of patent claim 17.
In einer Vielzahl von Anwendungsbereichen ist es notwendig, zwei unterschiedliche Bauteile miteinander zu verbinden oder aneinander zu befestigen. Dabei besteht häufig das Problem, dass an keinem der Bauteile ohne Weiteres ein Montagegewinde eingebracht werden kann.In a large number of areas of application it is necessary to connect or attach two different components to one another. There is often the problem that an assembly thread cannot easily be introduced on any of the components.
Insbesondere bei dünnwandigen Bauteilen ist die Materialstärke regelmäßig nicht ausreichend, um ein belastbares Montagegewinde direkt an dem Bauteil bereitstellen zu können. Zusätzlich zu der Dünnwandigkeit von Bauteilen existiert eine Vielzahl von weiteren Hindernisgründen, welche das Einbringen von Montagegewinden an Bauteilen verbietet. Die Einbringung von Montagegewinden in Bauteile kann beispielsweise die Beschichtung des jeweiligen Bauteils beschädigen. Ferner kann eine beschränkte Zugänglichkeit eines Bauteilabschnitts dazu führen, dass eine direkte Einbringung eines Montagegewindes gar nicht oder nur mit einem sehr hohen Aufwand möglich ist.In the case of thin-walled components in particular, the material thickness is regularly not sufficient to be able to provide a resilient mounting thread directly on the component. In addition to the thin walls of components, there are a number of other obstacles that prohibit the introduction of assembly threads on components. The introduction of assembly threads into components can, for example, damage the coating of the respective component. Furthermore, limited accessibility of a component section can mean that direct introduction of a mounting thread is not possible at all or only possible with a great deal of effort.
Zur Bereitstellung eines Montagegewindes ist es aus dem Stand der Technik bekannt, entsprechende Bauteile mit Ausnehmungen zu versehen und in die Ausnehmungen Nietmuttern einzutreiben. Die Druckschrift
Außerdem ist es bekannt, Unterlegscheiben mit einer lackschonenden Beschichtung zu verwenden, um eine Beschädigung der Bauteilbeschichtung während des Montageprozesses zu verhindern. Eine entsprechende Unterlegscheibe ist beispielsweise aus der Druckschrift
Weitere derartige Befestigungseinheiten sind aus
Die der Erfindung zugrunde liegende Aufgabe besteht somit darin, die Bereitstellung eines Montagegewindes an einem Bauteil zu ermöglichen, ohne dass dies zu einer Bauteilbeschädigung führt und/oder zeit- oder kostenaufwendige Montagevorgänge voraussetzt.The object on which the invention is based is therefore to make it possible to provide an assembly thread on a component without this leading to component damage and/or requiring time-consuming or costly assembly processes.
Die Aufgabe wird gelöst durch eine Befestigungseinheit der eingangs genannten Art, wobei die Befestigungseinheit die Merkmale des unabhängigen Anspruchs 1 aufweist.The object is achieved by a fastening unit of the type mentioned at the outset, the fastening unit having the features of independent claim 1 .
Die Erfindung macht sich die Erkenntnis zunutze, dass durch eine zumindest zweiteilige Befestigungseinheit, welche einen das Montagegewinde tragenden Befestigungskörper und ein zum Halten des Befestigungskörpers ausgebildetes Halteelement umfasst, die Notwendigkeit überwunden wird, den Befestigungskörper nach Art einer Nietmutter in das Bauteil einzutreiben. Die Befestigungseinheit kann somit, anders als eine Nietmutter, ohne wesentliche Materialbeanspruchung an dem Bauteil befestigt werden. Dabei stellt die Befestigungseinheit in gleicher Weise wie eine Nietmutter ein Montagegewinde an dem Bauteil bereit, welches dazu genutzt werden kann, ein weiteres Bauteil an dem Bauteil, an welchem das Montagegewinde bereitgestellt wurde, zu befestigen. Die Bereitstellung eines Montagegewindes an dem Bauteil erfolgt somit ohne oder mit einem wesentlich geringeren Risiko, eine Beschichtung, wie beispielsweise eine Lackierung, des Bauteils zu beschädigen. Einer beschleunigten Alterung und einem erhöhten Risiko eines Bauteilversagens durch Korrosion wird somit effektiv vorgebeugt. Darüber hinaus erlaubt die erfindungsgemäße Befestigungseinheit eine Ein-Mann-Montage, sodass der Montageaufwand erheblich reduziert wird.The invention makes use of the finding that an at least two-part fastening unit, which comprises a fastening body carrying the assembly thread and a holding element designed to hold the fastening body, overcomes the need to drive the fastening body into the component in the manner of a rivet nut. In contrast to a rivet nut, the fastening unit can thus be fastened to the component without significant material stress. In the same way as a rivet nut, the fastening unit provides a mounting thread on the component, which can be used to attach another component to the component on which the mounting thread has been provided. The provision of a mounting thread on the component thus takes place without or with a significantly lower risk of damaging a coating, such as a paint finish, on the component. Accelerated aging and an increased risk of component failure due to corrosion are thus effectively prevented. In addition, the fastening unit according to the invention allows one-man assembly, so that the assembly work is significantly reduced.
In einer besonders bevorzugten Ausführungsform der erfindungsgemäßen Befestigungseinheit ist das eine oder sind die mehreren Verbindungsteile des Halteelements dazu eingerichtet, reversibel lösbar und vorzugsweise zerstörungsfrei und/oder werkzeuglos mit dem Halteabschnitt des Befestigungskörpers verbunden zu werden. Durch die reversible Lösbarkeit der Verbindung zwischen dem einen oder den mehreren Verbindungsteilen des Halteelements und dem Halteabschnitt des Befestigungskörpers kann die Befestigungseinheit von dem Bauteil gelöst werden. Somit ist beispielsweise ein Austausch der Befestigungseinheit möglich, ohne dass das Bauteil während des Austauschs beschädigt wird. Insbesondere im Falle einer Beschädigung der Befestigungseinheit wird somit vermieden, dass das gesamte Bauteil, mit welchem die Befestigungseinheit verbunden ist, ausgetauscht werden muss.In a particularly preferred embodiment of the fastening unit according to the invention, the one or more connecting parts of the holding element are designed to be reversibly detachably connected to the holding section of the fastening body and preferably non-destructively and/or without tools. Due to the reversible detachability of the connection between the one or more connecting parts of the holding element and the holding section of the fastening body, the fastening unit can be detached from the component. Thus, for example, an exchange of the fastening unit is possible without the component being damaged during the exchange. In particular in the event of damage to the fastening unit, this avoids having to replace the entire component to which the fastening unit is connected.
Darüber hinaus ist eine erfindungsgemäße Befestigungseinheit bevorzugt, bei welcher das eine oder die mehreren Verbindungsteile des Halteelements dazu eingerichtet sind, zumindest formschlüssig mit dem Halteabschnitt des Befestigungskörpers verbunden zu werden. Alternativ oder zusätzlich ist das eine oder sind die mehreren Verbindungsteile des Halteelements dazu eingerichtet, kraftschlüssig mit dem Halteabschnitt des Befestigungskörpers verbunden zu werden. Die kraftschlüssige Verbindung kann dabei beispielsweise eine Klemmverbindung sein.In addition, a fastening unit according to the invention is preferred in which the one or more connecting parts of the holding element are set up to be connected at least in a form-fitting manner to the holding section of the fastening body. Alternatively or additionally, the one or more connecting parts of the holding element are designed to be connected in a non-positive manner to the holding section of the fastening body. The non-positive connection can be a clamp connection, for example.
In einer anderen Ausführungsform der erfindungsgemäßen Befestigungseinheit umfasst das eine oder umfassen die mehreren Verbindungsteile einen oder mehrere elastisch verformbare Stege, welche zum Halten des Befestigungskörpers auf der ersten Seite des Bauteils dazu eingerichtet sind, unter elastischer Verformung mit dem von dem Montagegewinde beabstandeten Halteabschnitt des Befestigungskörpers verbunden zu werden. Vorzugsweise ist der eine oder sind die mehreren elastisch verformbaren Stege dazu eingerichtet, beim Einsetzen des Halteelements in den Befestigungskörper durch In-Kontakt-Kommen mit dem Befestigungskörper elastisch verformt zu werden. Vorzugsweise wird der Formschluss zwischen dem einen oder den mehreren elastisch verformbaren Stegen und dem Halteabschnitt des Befestigungskörpers dadurch erreicht, dass der eine oder die mehreren elastisch verformten Stege jeweils durch eine Rückstellkraft eine Formschlussposition einnehmen.In another embodiment of the fastening unit according to the invention, the one or more connecting parts comprise one or a plurality of elastically deformable webs which, for holding the fastening body on the first side of the component, are designed to be connected under elastic deformation to the holding section of the fastening body spaced apart from the mounting thread. The one or more elastically deformable webs are preferably set up to be elastically deformed when the holding element is inserted into the fastening body by coming into contact with the fastening body. The form fit between the one or more elastically deformable webs and the holding section of the fastening body is preferably achieved in that the one or more elastically deformed webs each assume a form-fit position as a result of a restoring force.
Darüber hinaus ist eine erfindungsgemäße Befestigungseinheit bevorzugt, bei welcher der Halteabschnitt des Befestigungskörpers eine oder mehrere Rastkanten aufweist und der eine oder die mehreren Stege jeweils als Rasthaken ausgebildet sind, wobei die eine oder die mehreren Rastkanten und der eine oder die mehreren Rasthaken zum Halten des Befestigungskörpers auf der ersten Seite des Bauteils dazu eingerichtet sind, miteinander verrastet zu werden. Durch die eine oder die mehreren Rastkanten und den einen oder die mehreren als Rasthaken ausgebildeten Stege können der Befestigungskörper und das Halteelement nach Art einer Clip-Verbindung miteinander verbunden werden. Nach dem Verrasten des einen oder der mehreren Rastkanten und der einen oder der mehreren Rasthaken kann die Befestigungseinheit entweder bereits vollständig montiert sein oder sich in einem Zwischenzustand befinden, in welchem die Befestigungseinheit noch nicht vollständig montiert ist. In dem Zwischenzustand kann die Befestigungseinheit beispielsweise Spiel aufweisen, welches eine Relativbewegung der Befestigungseinheit gegenüber dem Bauteil erlaubt.In addition, a fastening unit according to the invention is preferred in which the holding section of the fastening body has one or more latching edges and the one or more webs are each designed as latching hooks, the one or more latching edges and the one or more latching hooks for holding the fastening body on the first side of the component are adapted to be latched together. The fastening body and the holding element can be connected to one another in the manner of a clip connection by the one or more latching edges and the one or more webs designed as latching hooks. After the one or more latching edges and the one or more latching hooks have engaged, the fastening unit can either already be fully assembled or be in an intermediate state in which the fastening unit is not yet fully assembled. In the intermediate state, the fastening unit can have play, for example, which allows a relative movement of the fastening unit with respect to the component.
In einer weiteren bevorzugten Ausführungsform der erfindungsgemäßen Befestigungseinheit weist der Halteabschnitt des Befestigungskörpers ein als Innengewinde ausgebildetes Fixiergewinde auf und die eine oder die mehreren Rastkanten sind Bestandteil des Fixiergewindes. Vorzugsweise ist die eine oder sind die mehreren Rastkanten durch die Flanken des Gewindeganges des Fixiergewindes ausgebildet. Insbesondere ist der eine oder sind die mehreren Rasthaken dazu eingerichtet, in dem Gewindegang des Fixiergewindes verrastet zu werden. Durch die Verwendung des Fixiergewindes zum Verrasten des einen oder der mehreren Rasthaken ergeben sich mehrere Einrastpositionen des Halteelements in dem Befestigungskörper.In a further preferred embodiment of the fastening unit according to the invention, the holding section of the fastening body has a fixing thread designed as an internal thread and the one or more latching edges are part of the fixing thread. Preferably one or the multiple latching edges are formed by the flanks of the thread turn of the fixing thread. In particular, the one or more latching hooks are designed to be latched in the thread of the fixing thread. The use of the fixing thread for latching the one or more latching hooks results in a plurality of latching positions of the holding element in the fastening body.
Außerdem ist eine erfindungsgemäße Befestigungseinheit bevorzugt, bei welcher der eine oder die mehreren Stege jeweils einen Kontaktbereich aufweisen, welcher einen Abschnitt eines mit dem Fixiergewinde korrespondierenden Außengewindes trägt. Durch das Außengewinde im Kontaktbereich des einen oder der mehreren Stege kann das Halteelement nach dem Verrastungsvorgang, welcher durch die elastische Verformbarkeit der Stege ermöglicht wird, weiter eingedreht werden, sodass ein Kontaktabschnitt des Halteelements in Kontakt mit einer Kontaktfläche des Bauteils kommt, welche auf der zweiten Seite des Bauteils angeordnet ist. Ein etwaig vorhandenes Spiel zwischen dem Befestigungskörper und dem Halteelement nach dem Einsetzen des Halteelements in den Befestigungskörper kann durch ein zusätzliches Eindrehen des Halteelements in den Befestigungskörper eliminiert werden. Auf diese Weise kann gewährleistet werden, dass das Halteelement unabhängig von der Ausbildung des Fixiergewindes bis zu einer Endposition in den Befestigungskörper eingesetzt werden kann, wobei das Halteelement in der Endposition an dem Bauteil anschlägt.In addition, a fastening unit according to the invention is preferred in which the one or more webs each have a contact area which carries a section of an external thread corresponding to the fixing thread. Due to the external thread in the contact area of the one or more webs, the holding element can be screwed in further after the latching process, which is made possible by the elastic deformability of the webs, so that a contact section of the holding element comes into contact with a contact surface of the component, which is on the second Side of the component is arranged. Any play between the fastening body and the retaining element after the retaining element has been inserted into the fastening body can be eliminated by additionally screwing the retaining element into the fastening body. In this way, it can be ensured that the holding element can be inserted into the fastening body up to an end position, independently of the formation of the fixing thread, with the holding element striking the component in the end position.
Erfindungsgemäß ist ein Verbindungsteil des Halteelements als umlaufendes und als Außengewinde ausgebildetes Verbindungsgewinde ausgebildet, wobei der Halteabschnitt des Befestigungskörpers ein zu dem Verbindungsgewinde korrespondierendes als Innengewinde ausgebildetes Fixiergewinde aufweist. Anders als bei der Ausbildung der Verbindungsteile als elastisch verformbare Stege wird das Halteelement in diesem Fall nicht axial in den Befestigungskörper eingesetzt, sondern mittels einer Rotationsbewegung in den Befestigungskörper eingedreht.According to the invention, a connecting part of the retaining element is designed as a peripheral connecting thread designed as an external thread, with the retaining section of the fastening body having a fixing thread designed as an internal thread and corresponding to the connecting thread. In contrast to the design of the connecting parts as elastically deformable webs, in this case the holding element is not inserted axially into the fastening body, but is screwed into the fastening body by means of a rotational movement.
Auf diese Weise kann die Stabilität und Präzision der Verbindung zwischen dem Befestigungskörper und dem Halteelement weiter gesteigert werden.In this way, the stability and precision of the connection between the fastening body and the holding element can be further increased.
In einer weiteren vorteilhaften Weiterbildung der erfindungsgemäßen Befestigungseinheit weisen das Montagegewinde und das Fixiergewinde unterschiedliche Durchmesser auf. Vorzugsweise weist das Fixiergewinde einen größeren Durchmesser als das Montagegewinde auf. In diesem Fall kann das eine oder können die mehreren Verbindungsteile mit dem Fixiergewinde in Eingriff gebracht werden, ohne dass das eine oder die mehreren Verbindungsteile in einen Bereich hineinragen, in welchen ein in das Montagegewinde einzudrehendes Befestigungselement, wie etwa eine Schraube, einzusetzen ist.In a further advantageous development of the fastening unit according to the invention, the mounting thread and the fixing thread have different diameters. The fixing thread preferably has a larger diameter than the mounting thread. In this case, the one or more connecting parts can be brought into engagement with the fixing thread without the one or more connecting parts protruding into an area in which a fastening element, such as a screw, to be screwed into the mounting thread, is to be inserted.
Ferner ist eine erfindungsgemäße Befestigungseinheit bevorzugt, bei welcher der Befestigungskörper eine Verdrehsicherung aufweist, welche dazu eingerichtet ist, sich zumindest abschnittsweise durch die Ausnehmung in dem Bauteil zu erstrecken und durch Formschluss ein Verdrehen des Befestigungskörpers um eine Längsachse des Befestigungskörpers zu verhindern. Vorzugsweise weist die Ausnehmung des Bauteils eine Innenkontur mit einer oder mehreren Ecken oder Kanten auf, wobei die Verdrehsicherung als Materialvorsprung ausgebildet ist, deren Form oder Querschnitt ein verdrehsicheres Einsetzen in die Ausnehmung des Bauteils erlaubt. Vorzugsweise weisen die Ausnehmung des Bauteils und/oder die Verdrehsicherung einen rechteckigen oder quadratischen Querschnitt auf.Furthermore, a fastening unit according to the invention is preferred in which the fastening body has an anti-twist device which is designed to extend at least in sections through the recess in the component and to prevent the fastening body from twisting about a longitudinal axis of the fastening body by means of a positive fit. The recess of the component preferably has an inner contour with one or more corners or edges, with the anti-twist device being designed as a material projection whose shape or cross-section allows it to be inserted into the recess of the component in a torsion-proof manner. The recess of the component and/or the anti-twist device preferably have a rectangular or square cross section.
Darüber hinaus ist eine erfindungsgemäße Befestigungseinheit vorteilhaft, bei welcher der Befestigungskörper eine Kontaktfläche aufweist, welche dazu eingerichtet ist, mit einer auf der ersten Seite des Bauteils angeordneten Kontaktfläche des Bauteils in Kontakt zu stehen. Die Kontaktfläche des Befestigungskörpers dient in diesem Fall als Anschlag, mit welchem der Befestigungskörper gegenüber dem Bauteil zumindest in einer Richtung positioniert werden kann.In addition, a fastening unit according to the invention is advantageous in which the fastening body has a contact surface which is set up to be in contact with a contact surface of the component arranged on the first side of the component. In this case, the contact surface of the fastening body serves as a stop with which the fastening body can be positioned relative to the component at least in one direction.
In einer anderen bevorzugten Ausführungsform der erfindungsgemäßen Befestigungseinheit weist das Halteelement einen Kontaktabschnitt auf, welcher dazu eingerichtet ist, als Unterlegscheibe und/oder Abstandshalter zwischen dem Bauteil und einem weiteren unter Verwendung der Befestigungseinheit an dem Bauteil zu befestigenden weiteren Bauteil zu dienen. Vorzugsweise weist der Kontaktabschnitt des Halteelements eine umlaufende ringförmige Außenfläche auf. Über den Kontaktabschnitt des Halteelements kann verhindert werden, dass die zwei miteinander zu befestigenden Bauteile miteinander in Berührung kommen. Ferner kann durch die Materialstärke des Kontaktabschnitts der Abstand zwischen den aneinander zu befestigenden Bauteilen präzise eingestellt werden.In another preferred embodiment of the fastening unit according to the invention, the holding element has a contact section which is set up to serve as a washer and/or spacer between the component and another further component to be fastened to the component using the fastening unit. The contact section of the holding element preferably has a circumferential annular outer surface. The two components to be fastened can be prevented from coming into contact with each other via the contact portion of the holding member. Furthermore, the distance between the components to be fastened to one another can be set precisely by the material thickness of the contact section.
Außerdem ist eine erfindungsgemäße Befestigungseinheit bevorzugt, bei welcher der Kontaktabschnitt des Halteelements eine erste Kontaktfläche, welche dazu eingerichtet ist, mit einer auf der zweiten Seite des Bauteils angeordneten Kontaktfläche des Bauteils in Kontakt zu stehen, und/oder eine zweite Kontaktfläche, welche dazu eingerichtet ist, mit einer Kontaktfläche des unter Verwendung der Befestigungseinheit an dem Bauteil zu befestigenden weiteren Bauteils in Kontakt zu stehen, aufweist. Vorzugsweise verlaufen die erste Kontaktfläche und die zweite Kontaktfläche im Wesentlichen parallel und/oder weisen eine übereinstimmende Grundform auf. Vorzugsweise weist der Kontaktabschnitt des Halteelements einen Querschnitt auf, welcher den Querschnitt der Ausnehmung des Bauteils abschnittsweise oder allseitig überragt.In addition, a fastening unit according to the invention is preferred in which the contact section of the holding element has a first contact surface, which is set up to be in contact with a contact surface of the component arranged on the second side of the component, and/or a second contact surface, which is set up for this purpose having to be in contact with a contact surface of the further component to be fastened to the component using the fastening unit. The first contact surface and the second contact surface preferably run essentially parallel and/or have a matching basic shape. Preferably, the contact section of the holding element has a cross section which projects beyond the cross section of the recess of the component in sections or on all sides.
In einer erfindungsgemäßen Weiterbildung der Befestigungseinheit ist der Kontaktabschnitt rund und/oder scheibenförmig ausgebildet und/oder weist eine oder mehrere Ausnehmungen auf. Vorzugsweise stimmt die Anzahl der Ausnehmungen des Kontaktabschnitts des Halteelements mit der Anzahl der elastisch verformbaren Stege des Halteelements überein.In a development of the fastening unit according to the invention, the contact section is round and/or disk-shaped and/or has one or more recesses. The number of recesses in the contact section of the holding element preferably corresponds to the number of elastically deformable webs of the holding element.
Ferner ist eine erfindungsgemäße Befestigungseinheit bevorzugt, bei welcher der Befestigungskörper und/oder das Halteelement jeweils einstückig ausgebildet sind. Durch die einstückige Ausbildung des Befestigungskörpers und/oder des Halteelements ist die Befestigungseinheit besonders robust gegen äußere Einflüsse, wobei die Einstückigkeit des Befestigungskörpers und/oder des Halteelements ebenfalls einen wesentlichen Einfluss auf die Festigkeit der Verbindung zwischen dem Befestigungskörper und dem Halteelement haben kann.Furthermore, a fastening unit according to the invention is preferred in which the fastening body and/or the holding element are each formed in one piece. Due to the one-piece design of the fastening body and/or the holding element, the fastening unit is particularly robust against external influences Influences, the one-piece nature of the fastening body and / or the holding element can also have a significant influence on the strength of the connection between the fastening body and the holding element.
In einer weiteren vorteilhaften Weiterbildung der erfindungsgemäßen Befestigungseinheit sind der Befestigungskörper und/oder das Halteelement jeweils teilweise oder vollständig aus Kunststoff, insbesondere aus einem faserverstärkten Kunststoff ausgebildet. Vorzugsweise sind die Fasern derart orientiert, dass diese ein Gewebe, Gelege, Gestick oder Geflecht ausbilden. Alternativ können die Fasern auch in radialer Richtung, in axialer Richtung und/oder in Umfangsrichtung ausgerichtet sein. Alternativ oder zusätzlich können der Befestigungskörper und/oder das Halteelement auch jeweils teilweise oder vollständig aus Metall oder einer Metalllegierung ausgebildet sein.In a further advantageous development of the fastening unit according to the invention, the fastening body and/or the holding element are each made partially or completely of plastic, in particular of a fiber-reinforced plastic. The fibers are preferably oriented in such a way that they form a woven fabric, scrim, knitted fabric or mesh. Alternatively, the fibers can also be aligned in the radial direction, in the axial direction and/or in the circumferential direction. As an alternative or in addition, the fastening body and/or the holding element can also be made partially or completely of metal or a metal alloy.
Die der Erfindung zugrunde liegende Aufgabe wird ferner durch eine Baugruppe der eingangs genannten Art gelöst, wobei die Befestigungseinheit nach einer der vorstehend beschriebenen Ausführungsformen ausgebildet ist. Hinsichtlich der Vorteile und Modifikationen der erfindungsgemäßen Baugruppe wird zunächst auf die Vorteile und Modifikationen der erfindungsgemäßen Befestigungseinheit verwiesen.The object on which the invention is based is also achieved by an assembly of the type mentioned at the outset, the fastening unit being designed according to one of the embodiments described above. With regard to the advantages and modifications of the assembly according to the invention, reference is first made to the advantages and modifications of the fastening unit according to the invention.
In einer besonders bevorzugten Ausführungsform der erfindungsgemäßen Baugruppe ist das Befestigungselement dazu eingerichtet, bereits vor dem Eindrehen und/oder während des Eindrehens in das Montagegewinde ein Lösen des einen oder der mehreren Verbindungsteile von dem Halteabschnitt des Befestigungskörpers zu verhindern. Vorzugsweise ist das Befestigungselement als Schraube ausgebildet. Die Flanken des Außengewindes der Schrauben liegen dabei bereits vor dem Eindrehen und/oder während des Eindrehens der Schraube in das Montagegewinde an dem einen oder den mehreren Verbindungsteilen des Halteelements an, sodass eine elastische Verformung, welche ein Lösen des einen oder der mehreren Verbindungsteile von dem Halteabschnitt des Befestigungskörpers erlauben würde, durch das Befestigungselement verhindert wird, da das Befestigungselement den für die elastische Verformung des einen oder der mehreren Verbindungsteile notwendigen Raum einnimmt.In a particularly preferred embodiment of the assembly according to the invention, the fastening element is set up to prevent the one or more connecting parts from detaching from the holding section of the fastening body before and/or during screwing into the mounting thread. The fastening element is preferably designed as a screw. The flanks of the external thread of the screw are already in contact with the one or more connecting parts of the retaining element before the screw is screwed in and/or while the screw is being screwed into the mounting thread, so that an elastic deformation, which would cause the one or more connecting parts to detach from the Holding portion of the fastener body would allow prevented by the fastener because the fastening element occupies the space necessary for the elastic deformation of the one or more connecting parts.
Weitere Einzelheiten der Erfindung sind der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen
- Fig. 1
- ein landwirtschaftliches Verteilgerät, bei welchem die erfindungsgemäße Baugruppe verbaut ist;
- Fig. 2
- das in der
Fig. 1 dargestellte landwirtschaftliche Verteilgerät in einer Draufsicht; - Fig. 3
- einen die erfindungsgemäße Baugruppe beinhaltenden Ausschnitt des in der
Fig. 1 dargestellten landwirtschaftlichen Verteilgeräts; - Fig. 4
- ein Ausführungsbeispiel der erfindungsgemäßen Befestigungseinheit in einer perspektivischen Darstellung;
- Fig. 5
- einen Befestigungskörper einer erfindungsgemäßen Befestigungseinheit in einer perspektivischen Darstellung;
- Fig. 6
- den in der
Fig. 5 dargestellten Befestigungskörper in einer Seitenansicht; - Fig. 7
- den in der
Fig. 5 dargestellten Befestigungskörper in einer Schnittdarstellung; - Fig. 8
- ein Halteelement einer erfindungsgemäßen Befestigungseinheit in einer perspektivischen Darstellung;
- Fig. 9
- das in der
Fig. 8 dargestellte Halteelement in einer Seitenansicht; - Fig. 10
- das in der
Fig. 8 dargestellte Halteelement in einer Schnittdarstellung; - Fig. 11
- ein Ausführungsbeispiel der erfindungsgemäßen Baugruppe in einer Schnittdarstellung;
- Fig. 12
- ein weiteres Ausführungsbeispiel der erfindungsgemäßen Baugruppe in einer Schnittdarstellung; und
- Fig. 13
- ein weiteres Ausführungsbeispiel der erfindungsgemäßen Baugruppe in einer Schnittdarstellung.
- 1
- an agricultural distribution device in which the assembly according to the invention is installed;
- 2
- that in the
1 illustrated agricultural distribution device in a plan view; - 3
- a section containing the assembly according to the invention in the
1 illustrated agricultural distribution device; - 4
- an embodiment of the fastening unit according to the invention in a perspective view;
- figure 5
- a fastening body of a fastening unit according to the invention in a perspective view;
- 6
- the one in the
figure 5 fastening body shown in a side view; - 7
- the one in the
figure 5 fastening body shown in a sectional view; - 8
- a holding element of a fastening unit according to the invention in a perspective view;
- 9
- that in the
8 shown holding element in a side view; - 10
- that in the
8 shown holding element in a sectional view; - 11
- an embodiment of the assembly according to the invention in a sectional view;
- 12
- another embodiment of the assembly according to the invention in a sectional view; and
- 13
- another embodiment of the assembly according to the invention in a sectional view.
Die
Der Vorratsbehälter 202 ist in den Vorratsbereichen 204a, 204b jeweils aus einem dünnwandigen tiefgezogenen Blech ausgebildet. Die Bleche sind an einem ebenfalls dünnwandigen Tragrahmen befestigt. Ferner weisen die Bleche und der Tragrahmen eine Beschichtung auf, welche die Bauteile vor Korrosion schützen.The
Aufgrund der Dünnwandigkeit der Bleche und des Tragrahmens und deren Beschichtung ist es nicht möglich ein belastbares Montagegewinde direkt in eines der Bauteile einzubringen. Das Eintreiben von Nietmutter verbietet sich aufgrund des Risikos, die Beschichtung zu beschädigen.Due to the thin walls of the sheet metal and the supporting frame and their coating, it is not possible to insert a load-bearing assembly thread directly into one of the components. Driving in rivet nuts is prohibited due to the risk of damaging the coating.
Die
Die
Der Befestigungskörper 12 trägt das Montagegewinde 36 und ist dazu eingerichtet, auf einer ersten Seite 108 des Bauteils 102 im Bereich einer sich durch das Bauteil 102 erstreckenden Ausnehmung 112 angeordnet zu werden. Hierzu weist der Befestigungskörper eine Kontaktfläche 26 und eine Verdrehsicherung 22 auf. Die Kontaktfläche 26 ist dazu eingerichtet, mit einer auf der ersten Seite 108 des Bauteils 102 angeordneten Kontaktfläche 114 des Bauteils 102 in Kontakt zu stehen. Die Verdrehsicherung 22 kann in die Ausnehmung 112 in dem Bauteil 102 eingesetzt werden und verhindert durch Formschluss ein Verdrehen des Befestigungskörpers 12 um seine Längsachse 24. Die Ausnehmung 112 des Bauteils 102 weist eine Innenkontur mit mehreren Ecken auf, wobei die Verdrehsicherung 22 als Materialvorsprung 28 ausgebildet ist, deren Form korrespondierende Ecken 30a-30d aufweist, welche ein verdrehsicheres Einsetzen in die Ausnehmung 112 des Bauteils 102 erlauben (siehe hierzu auch
Das Halteelement 14 ist dazu eingerichtet, auf einer zweiten Seite 110 des Bauteils 102 im Bereich der sich durch das Bauteil 102 erstreckenden Ausnehmung 112 und gegenüberliegend zu dem Befestigungskörper 12 angeordnet zu werden und den Befestigungskörper 12 auf der ersten Seite 108 des Bauteils 102 zu halten. Das Halteelement 14 weist außerdem einen Kontaktabschnitt 16 auf, welcher als Unterlegscheibe und Abstandshalter zwischen dem Bauteil 102 und einem unter Verwendung der Befestigungseinheit 10 an dem Bauteil 102 zu befestigenden weiteren Bauteil 104 dient. Der Kontaktabschnitt 16 des Halteelements 14 weist eine erste Kontaktfläche 18 auf, welche dazu eingerichtet ist, mit einer auf der zweite Seite 110 des Bauteils 102 angeordneten Kontaktfläche 116 des Bauteils 102 in Kontakt zu stehen. Außerdem weist der Kontaktabschnitt 16 des Halteelements 14 eine zweite Kontaktfläche 20 auf, welche dazu eingerichtet ist, mit einer Kontaktfläche 120 des unter Verwendung der Befestigungseinheit 10 an dem Bauteil 102 zu befestigenden weiteren Bauteils 104 in Kontakt zu stehen (siehe hierzu auch die
Durch die Befestigungseinheit 10 wird an dem Bauteil 102 ein Montagegewinde 36 bereitgestellt, welches dazu genutzt werden kann, ein weiteres Bauteil 104 an dem Bauteil 102, an welchem das Montagegewinde 36 bereitgestellt wurde, zu befestigen.The
Die
Der Halteabschnitt 44 des Befestigungskörpers 12 weist ein als Innengewinde ausgebildetes Fixiergewinde 34 auf. Die Flanken des Fixiergewindes 34 dienen als Rastkanten für als Rasthaken ausgebildete elastisch verformbare Stege eines Halteelements 14. Das Montagegewinde 36 und das Fixiergewinde 34 weisen unterschiedliche Durchmesser d1, d2 auf, wobei der Durchmesser d2 des Fixiergewindes 34 größer ist als der Durchmesser d1 des Montagegewindes 36. Das Montagegewinde 36 und das Fixiergewinde 34 sind in einen Grundkörper 32 des Befestigungskörpers 12 eingebracht.The holding
Die
Das Halteelement 14 umfasst insgesamt vier Verbindungsteile 38a-38d, wobei jeweils zwei Verbindungsteile 38a-38d gegenüberliegend angeordnet sind. Die Verbindungsteile 38a-38d sind als elastisch verformbare Stege ausgebildet, wobei die elastisch verformbaren Stege zum Halten des Befestigungskörpers 12 auf der ersten Seite 108 des Bauteils 102 dazu eingerichtet sind, unter elastischer Verformung mit dem von dem Montagegewinde 36 beabstandeten Halteabschnitt 44 des Befestigungskörpers 12 verbunden zu werden.The holding
Die als elastisch verformbare Stege ausgebildeten Verbindungsteile 38a-38d des Halteelements 14 sind reversibel lösbar sowie zerstörungsfrei und werkzeuglos mit dem Halteabschnitt 44 des Befestigungskörpers 12 verbindbar. Hierzu sind die als elastisch verformbare Stege ausgebildeten Verbindungsteile 38a-38d jeweils als Rasthaken ausgebildet, welche dazu eingerichtet sind mit dem Fixiergewinde 36 des Befestigungskörpers 12 nach Art einer Clip-Verbindung verrastet zu werden. Die als elastisch verformbare Stege ausgebildeten Verbindungsteile 38a-38d weisen jeweils einen Kontaktbereich 42a-42d auf, welcher einen Abschnitt eines mit dem Fixiergewinde 34 korrespondierenden Außengewindes trägt. Durch das Außengewinde im Kontaktbereich 42a-42d der Stege kann das Halteelement 14 nach dem Verrastungsvorgang, welcher durch die elastische Verformbarkeit der Stege ermöglicht wird, weiter eingedreht werden.The connecting
Außerdem weist das Halteelement 14 einen scheibenförmigen Kontaktabschnitt 16 auf, welcher als Unterlegscheibe dient. Ferner weist der Kontaktabschnitt 16 mehrere Ausnehmungen 40a-40d auf, wobei die Anzahl der Ausnehmungen 40a-40d des Kontaktabschnitts 16 des Halteelements 14 mit der Anzahl der Stege des Halteelements 14 übereinstimmt.In addition, the holding
Die
Das Befestigungselement 106 ist als Schraube ausgebildet und weist einen Schraubenkopf 124 und ein Außengewinde 118 auf. Der Schraubenkopf 124 liegt auf der Kontaktfläche 122 des zweiten Bauteils 104 auf. Das Befestigungselement 106 erstreckt sich durch eine Ausnehmung 126 in dem zweiten Bauteil 104 sowie durch eine Ausnehmung 112 in dem ersten Bauteil 102.The
Die Befestigungseinheit 10 stellt an dem ersten Bauteil 102 ein als Innengewinde ausgebildetes Montagegewinde 36 bereitstellt, in welches das Außengewinde 118 des Befestigungselements 106 eingeschraubt ist, sodass das erste Bauteil 102 und das zweite Bauteil 104 mittels der Befestigungseinheit 10 und dem Befestigungselement 106 aneinander befestigt sind.The
Das Befestigungselement 106 ist dazu eingerichtet, bereits vor dem Eindrehen und während des Eindrehens in das Montagegewinde 36 ein Lösen der als elastisch verformbare Stege ausgebildeten Verbindungsteile 38a-38d von dem Halteabschnitt 44 des Befestigungskörpers 12 zu verhindern. Dies wird dadurch erreicht, dass das Befestigungselement 106 bereits vor dem Eindrehen und während des Eindrehens in das Montagegewinde 36 einen Bauraum beansprucht, welchen die als elastisch verformbare Stege ausgebildeten Verbindungsteile 38a-38d benötigen würden, um sich derart zu verformen, dass der Eingriff in ein im Halteabschnitt 44 angeordnetes Fixiergewinde 34 gelöst werden kann.
Die in den
Zur Ausgestaltung der Außenkontur des Befestigungskörpers 12 sei noch das folgende angemerkt:
In den bisher beschriebenen Ausführungsbeispielen ist der Befestigungskörper 12 in seinem freien Endbereich kreisförmig ausgebildet. Es ist jedoch auch möglich, die Außenkontur des Befestigungskörpers 12 mehreckig, beispielsweise viereckig oder sechseckig auszugestalten. Durch diese Ausgestaltung kann zum Beispiel ein entsprechender Steckschlüssel auf die sechseckige Außenkontur des Befestigungskörpers 12 aufgesetzt werden. So ist zum Beispiel die Montage der Befestigungseinheit 10 mit dem Befestigungskörper 12 an nicht ohne weiteres zugänglichen Stellen möglich. Somit kann die Befestigung der 10 mit dem Befestigungskörper 12 an einer Rohrwand, in welcher entsprechend ausgestaltete Durchbrüche angeordnet sind, montiert werden.The following should also be noted with regard to the design of the outer contour of the fastening body 12:
In the exemplary embodiments described so far, the
- 1010
- Befestigungseinheitfastening unit
- 1212
- Befestigungskörperfastener body
- 1414
- Halteelementholding element
- 1616
- Kontaktabschnittcontact section
- 1818
- Kontaktflächecontact surface
- 2020
- Kontaktflächecontact surface
- 2222
- Verdrehsicherunganti-rotation device
- 2424
- Längsachselongitudinal axis
- 2626
- Kontaktflächecontact surface
- 2828
- Materialvorsprungmaterial advantage
- 30a-30d30a-30d
- Eckencorners
- 3232
- Grundkörperbody
- 3434
- Fixiergewindefixing thread
- 3636
- Montagegewindemounting thread
- 38a-38d38a-38d
- Verbindungsteileconnecting parts
- 40a-40d40a-40d
- Ausnehmungenrecesses
- 42a-42d42a-42d
- Kontaktbereichecontact areas
- 4444
- Halteabschnittholding section
- 100100
- Baugruppemodule
- 102102
- Bauteilcomponent
- 104104
- Bauteilcomponent
- 106106
- Befestigungselementfastener
- 108108
- erste Seitefirst page
- 110110
- zweite Seitesecond page
- 112112
- Ausnehmungrecess
- 114114
- Kontaktflächecontact surface
- 116116
- Kontaktflächecontact surface
- 118118
- Außengewindeexternal thread
- 120120
- Kontaktflächecontact surface
- 122122
- Kontaktflächecontact surface
- 124124
- Kopfhead
- 126126
- Ausnehmungrecess
- 200200
- Verteilgerätdistribution device
- 202202
- Vorratsbehälterreservoir
- 204a, 204b204a, 204b
- Vorratsbereichestorage areas
- 206a, 206b206a, 206b
- Dosierorganedosing devices
- 208a, 208b208a, 208b
- Schleuderscheibencentrifugal discs
- d1, d2d1, d2
- Gewindedurchmesserthread diameter
- x1-x3x1-x3
- Blechstärkensheet thicknesses
- y1-y3y1-y3
- Blechstärkensheet thicknesses
Claims (17)
- Fixing unit (10) for providing a mounting thread (36), designed as an internal thread, on a component (102) - in particular, on a thin-walled component (102) - having- a fixing body (12), which bears the mounting thread (36) and is designed to be arranged on a first side (108) of the component (102) in the region of a cut-out (112) extending through the component (102); and- a holding element (14), which is designed to be arranged on a second side (110) of the component (102) in the region of the cut-out (112), extending through the component (102), and opposite the fixing body (12), and to hold the fixing body (12) on the first side (108) of the component (102),wherein, that the holding element (14) comprises one or more connecting parts (38a-38d), which are designed to hold the fixing body (12) on the first side (108) of the component (102) in order to be connected to a holding portion (44), spaced apart from the mounting thread (36), of the fixing body (12), characterized in that a connecting part (38a-38d) of the holding element (14) is designed as a circumferential connection thread which is designed as an external thread, wherein the holding portion (44) of the fixing body (12) has a fixing thread (34), which corresponds to the connection thread and is designed as an internal thread.
- Fixing unit (10) according to claim 1,
characterized in that the one or more connecting parts (38a-38d) of the holding element (14) are designed to be connected to the holding portion (44) of the fixing body (12) in a reversibly detachable and preferably non-destructive manner and/or without tools. - Fixing unit (10) according to claim 1 or 2,
characterized in that the one or more connecting parts (38a-38d) of the holding element (14) are designed to be connected to the holding portion (44) of the fixing body (12) at least in a form-fitting manner. - Fixing unit (10) according to one of the preceding claims,
characterized in that the one or more connecting parts (38a-38d) comprise one or more elastically deformable webs, which are designed to hold the fixing body (12) on the first side (108) of the component (102) in order to be connected, with elastic deformation, to the holding portion (44), spaced apart from the mounting thread (36), of the fixing body (12). - Fixing unit (10) according to claim 4,
characterized in that the holding portion (44) of the fixing body (12) has one or more latching edges, and the one or more webs are each designed as latching hooks, wherein the one or more latching edges and the one or more latching hooks for holding the fixing body (12) on the first side (108) of the component (102) are designed to be latched to one another. - Fixing unit (10) according to claim 5,
characterized in that the holding portion (44) of the fixing body (12) has a fixing thread (34) designed as an internal thread, and the one or more latching edges are part of the fixing thread (34). - Fixing unit (10) according to claim 6,
characterized in that the one or more webs each have a contact region (42a-42d), which bears a portion of an external thread corresponding to the fixing thread (34). - Fixing unit (10) according to one of claims 1 or 6 through 7,
characterized in that the mounting thread (36) and the fixing thread (34) have different diameters (d1, d2). - Fixing unit (10) according to one of the preceding claims,
characterized in that the fixing body (12) has an anti-rotation lock (22), which is designed to extend at least in sections through the cut-out (112) in the component (102) and to prevent rotation of the fixing body (12) about a longitudinal axis (24) of the fixing body (12) by means of a form fit. - Fixing unit (10) according to one of the preceding claims,
characterized in that the fixing body (12) has a contact surface (26) which is designed to be in contact with a contact surface (114) of the component (102) arranged on the first side (108) of the component (102). - Fixing unit (10) according to one of the preceding claims,
characterized in that the holding element (14) has a contact portion (16), which is designed to be used as a washer and/or spacer between the component (102) and a further component (104) to be fixed to the component (102) using the fixing unit (10). - Fixing unit (10) according to claim 11,
characterized in that the contact portion (16) of the holding element (14) has a first contact surface (18), which is designed to be in contact with a contact surface (116) of the component (102) arranged on the second side (110) of the component (102), and/or a second contact surface (20), which is designed to be in contact with a contact surface (120) of the further component (104) to be fixed to the component (102) using the fixing unit (10). - Fixing unit (10) according to claim 11 or 12,
characterized in that the contact portion (16) is round and/or disk-shaped and/or has one or more cut-outs (40a-40d). - Fixing unit (10) according to one of the preceding claims,
characterized in that the fixing body (12) and/or the holding element (14) are each formed in one piece. - Fixing unit (10) according to one of the preceding claims,
characterized in that the fixing body (12) and/or the holding element (14) are each partially or completely made of plastic, and in particular of fiber-reinforced plastic. - Assembly (100), having- a first component (102);- a second component (104);- a fixing unit (10), which, on the first component (102), provides a mounting thread (36) designed as an internal thread; and- a fixing element (106), which has an external thread (118) corresponding to the mounting thread (36);wherein the first component (102) and the second component (104) are fixed to one another by means of the fixing unit (10) and the fixing element (106),characterized in that the fixing unit (10) is designed according to one of the preceding claims.
- Assembly (100) according to claim 16,
characterized in that the fixing element (106) is designed to prevent the one or more connecting parts (38a-38d) from being detached from the holding portion (44) of the fixing body (12) even before and/or during the screwing into the mounting thread (36).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017119010.4A DE102017119010A1 (en) | 2017-08-21 | 2017-08-21 | fixing unit |
PCT/EP2018/072170 WO2019038163A1 (en) | 2017-08-21 | 2018-08-16 | Fixing unit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3673180A1 EP3673180A1 (en) | 2020-07-01 |
EP3673180B1 true EP3673180B1 (en) | 2022-09-14 |
Family
ID=63312004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18758853.8A Active EP3673180B1 (en) | 2017-08-21 | 2018-08-16 | Fixing unit |
Country Status (9)
Country | Link |
---|---|
US (1) | US11555514B2 (en) |
EP (1) | EP3673180B1 (en) |
CA (1) | CA3072848C (en) |
DE (1) | DE102017119010A1 (en) |
DK (1) | DK3673180T3 (en) |
EA (1) | EA202090320A1 (en) |
PL (1) | PL3673180T3 (en) |
UA (1) | UA125764C2 (en) |
WO (1) | WO2019038163A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE102021119583A1 (en) * | 2021-07-28 | 2023-02-02 | Fischerwerke Gmbh & Co. Kg | fastener |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8297169B2 (en) * | 2006-06-26 | 2012-10-30 | The Boeing Company | Ballistic resistant through insert with floating capability for stopping a ballistic projectile |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2502933Y2 (en) * | 1991-04-18 | 1996-06-26 | 株式会社ニフコ | Fasteners for plates |
DE19944685A1 (en) | 1999-09-17 | 2001-03-22 | Boellhoff Gmbh | System for attaching cover panel to car underbody comprises bolt which is inserted through underbody and locking washer with funnel-shaped section which passes through cover panel to snap fit over inside rim of nut |
DE10138354C1 (en) * | 2001-08-04 | 2003-04-24 | Lydall Gerhardi Gmbh & Co Kg | Fastening element for a panel |
DE20314003U1 (en) * | 2003-09-09 | 2003-11-13 | Boellhoff Gmbh | Tolerance compensation arrangement |
DE102006007244A1 (en) * | 2006-02-15 | 2007-08-16 | Newfrey Llc, Newark | Fastening element has thread section extending along longitudinal axis, which is provided with inside or outside thread, and flange section that has support surface for supporting one of components |
CN201097290Y (en) * | 2007-08-24 | 2008-08-06 | 鸿富锦精密工业(深圳)有限公司 | Electronic element supporting structure |
CA2773314C (en) * | 2009-09-09 | 2017-11-21 | The Monadnock Company | Panel fastener, panel assembly and methods of assembly and installation |
US8579570B2 (en) * | 2011-08-11 | 2013-11-12 | GM Global Technology Operations LLC | Fastener attaching a component to a panel |
US8573911B2 (en) * | 2011-09-28 | 2013-11-05 | Apple Inc. | Floating fasteners |
DE102012102926A1 (en) | 2012-04-04 | 2013-10-10 | Amazonen-Werke H. Dreyer Gmbh & Co. Kg | washer |
DE102012104895A1 (en) | 2012-06-06 | 2013-12-12 | Amazonen-Werke H. Dreyer Gmbh & Co. Kg | Reservoir for agricultural dispensers |
DE102018205929A1 (en) * | 2018-04-18 | 2019-10-24 | Fidlock Gmbh | Fastening device with a base part and a locking part |
-
2017
- 2017-08-21 DE DE102017119010.4A patent/DE102017119010A1/en not_active Ceased
-
2018
- 2018-08-16 CA CA3072848A patent/CA3072848C/en active Active
- 2018-08-16 EP EP18758853.8A patent/EP3673180B1/en active Active
- 2018-08-16 UA UAA202001744A patent/UA125764C2/en unknown
- 2018-08-16 DK DK18758853.8T patent/DK3673180T3/en active
- 2018-08-16 US US16/639,903 patent/US11555514B2/en active Active
- 2018-08-16 EA EA202090320A patent/EA202090320A1/en unknown
- 2018-08-16 PL PL18758853.8T patent/PL3673180T3/en unknown
- 2018-08-16 WO PCT/EP2018/072170 patent/WO2019038163A1/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8297169B2 (en) * | 2006-06-26 | 2012-10-30 | The Boeing Company | Ballistic resistant through insert with floating capability for stopping a ballistic projectile |
Also Published As
Publication number | Publication date |
---|---|
CA3072848A1 (en) | 2019-02-28 |
CA3072848C (en) | 2022-05-31 |
EA202090320A1 (en) | 2020-07-09 |
DE102017119010A1 (en) | 2019-02-21 |
US20210131476A1 (en) | 2021-05-06 |
US11555514B2 (en) | 2023-01-17 |
EP3673180A1 (en) | 2020-07-01 |
WO2019038163A1 (en) | 2019-02-28 |
PL3673180T3 (en) | 2022-11-07 |
UA125764C2 (en) | 2022-06-01 |
DK3673180T3 (en) | 2022-10-24 |
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